#!/usr/bin/env bash
# nbdkit
# Copyright Red Hat
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# Test checkwrite filter returns EIO when we write wrong data.

source ./functions.sh
set -e
set -x
set -u

requires nbdsh --version
requires_filter checkwrite

# The filter should probably work on Windows, but we cannot test it
# because of use of nbdsh + nbdkit -s.
requires_single_mode

nbdsh -c '
import sys

h.connect_command(["nbdkit", "-s", "-v",
                   "--filter=checkwrite",
                   "memory", "1M"])
try:
    h.pwrite(b"1", 0)
except nbd.Error as ex:
    assert ex.errno == "EIO"
    sys.exit(0)

# We should not reach here.
sys.exit(1)
'
